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    SEGMENT ROUTING INTO A LABEL DISTRIBUTION PROTOCOL DOMAIN
    13.
    发明申请
    SEGMENT ROUTING INTO A LABEL DISTRIBUTION PROTOCOL DOMAIN 审中-公开
    分段路由到标签分配协议域

    公开(公告)号：US20170019330A1

    公开(公告)日：2017-01-19

    申请号：US15280262

    申请日：2016-09-29

    Applicant: Cisco Technology, Inc.

    Inventor： Clarence Filsfils ,  Ahmed R. Bashandy ,  David D. Ward ,  Stefano B. Previdi

    IPC: H04L12/723 ,  H04L12/721 ,  H04L12/741 ,  H04L12/24

    CPC classification number: H04L41/12 ,  H04L12/4633 ,  H04L45/04 ,  H04L45/12 ,  H04L45/46 ,  H04L45/50 ,  H04L45/507 ,  H04L45/54 ,  H04L45/74 ,  H04L45/745 ,  H04L47/724 ,  H04L49/608

    Abstract: A method, apparatus and memory for forwarding packets through a network domain containing nodes that are label distribution protocol (LDP) enabled and nodes that are segment routing (SR) enabled. In one embodiment, the method may include receiving at a hybrid node a packet with an attached segment identifier and detaching the segment identifier from the packet. This embodiment of the method continues with attaching a first LDP label to the packet after the segment identifier is detached and forwarding the packet with the attached first LDP label on a path toward a first LDP enabled node.

    Abstract translation: 一种用于通过包含启用标签分发协议（LDP）的节点和启用分段路由（SR）的节点的网络域转发分组的方法，装置和存储器。 在一个实施例中，该方法可以包括在混合节点处接收具有附加的段标识符的分组，并从分组中分离分段标识符。 该方法的该实施例在段标识符分离之后继续附加到分组上的第一LDP标签，并且在朝向第一LDP使能节点的路径上转发具有附加的第一LDP标签的分组。

    System and method for protection against edge node failure
    15.
    发明授权
    System and method for protection against edge node failure 有权
    防止边缘节点故障的系统和方法

    公开(公告)号：US09225592B2

    公开(公告)日：2015-12-29

    申请号：US14299279

    申请日：2014-06-09

    Applicant: Cisco Technology, Inc.

    Inventor： Ahmed R. Bashandy

    IPC: H04J1/16 ,  H04L12/28 ,  H04L12/24 ,  H04L12/745 ,  H04L12/751 ,  H04L12/703

    CPC classification number: H04L41/0668 ,  H04L41/0663 ,  H04L45/02 ,  H04L45/28 ,  H04L45/748

    Abstract: In one embodiment, a method includes determining, by an edge router, a plurality of prefixes reachable by the edge router, each prefix indicating a range of Internet Protocol (IP) addresses. The method further includes grouping, by the edge router, the plurality of prefixes into one or more groups, wherein each group is associated with a particular repair edge router and the prefixes in each particular group are reachable by both the edge router and the particular repair edge router associated with the particular group. The method further includes communicating instructions, from the edge router to a core router, to send data packets associated with the prefixes in each particular group to the particular edge router associated with the particular group if the edge router becomes unreachable.

    Abstract translation: 在一个实施例中，一种方法包括由边缘路由器确定由边缘路由器可达的多个前缀，每个前缀指示互联网协议（IP）地址的范围。 该方法还包括由边缘路由器将多个前缀分组成一个或多个组，其中每个组与特定修复边缘路由器相关联，并且每个特定组中的前缀可由边缘路由器和特定修复 与特定组相关联的边缘路由器。 该方法还包括：如果边缘路由器变得不可达，则从边缘路由器到核心路由器通信指令将与每个特定组中的前缀相关联的数据分组发送到与特定组相关联的特定边缘路由器。

    Indexed segment ID
    19.
    发明授权
    Indexed segment ID 有权
    索引段ID

    公开(公告)号：US09559954B2

    公开(公告)日：2017-01-31

    申请号：US14155601

    申请日：2014-01-15

    Applicant: Cisco Technology, Inc.

    Inventor： Clarence Filsfils ,  Stefano B. Previdi ,  Ahmed R. Bashandy

    IPC: H04L12/741 ,  H04L12/801 ,  H04L12/751 ,  H04L12/701 ,  H04L12/723

    CPC classification number: H04L45/745 ,  H04L45/00 ,  H04L45/02 ,  H04L45/50 ,  H04L45/54

    Abstract: An apparatus and method for using indexed segment identifiers in segment routing. An example method involves receiving a globally unique index value at a node. The method also involves receiving a base value at the node, where the base value comprises a segment routing value configured to identify a nodal segment. The method then involves calculating a segment identifier based on the index value and the base value.

    Abstract translation: 在段路由中使用索引段标识符的装置和方法。 一个示例方法涉及在节点处接收全局唯一的索引值。 该方法还涉及在节点处接收基本值，其中基本值包括被配置为识别节点段的段路由值。 该方法然后包括基于索引值和基础值计算段标识符。

    LABEL DISTRIBUTION PROTOCOL OVER SEGMENT ROUTING
    20.
    发明申请
    LABEL DISTRIBUTION PROTOCOL OVER SEGMENT ROUTING 有权
    标签分配协议超过部分路由

    公开(公告)号：US20140269698A1

    公开(公告)日：2014-09-18

    申请号：US14210729

    申请日：2014-03-14

    Applicant: Cisco Technology, Inc.

    Inventor： Clarence Filsfils ,  Ahmed R. Bashandy ,  David D. Ward ,  Stefano B. Previdi

    IPC: H04L12/723

    CPC classification number: H04L41/12 ,  H04L12/4633 ,  H04L45/04 ,  H04L45/12 ,  H04L45/46 ,  H04L45/50 ,  H04L45/507 ,  H04L45/54 ,  H04L45/74 ,  H04L45/745 ,  H04L47/724 ,  H04L49/608

    Abstract: A method and apparatus for forwarding packets through a network domain that contains nodes that are label distribution protocol (LDP) enabled and nodes that are segment routing (SR) enabled. In one embodiment, the method may include a network node receiving a packet with a label attached thereto. The node swaps the label with a segment identifier (ID). The node then forwards the packet to an SR node. In another embodiment, the method may include a network node receiving a packet with a segment ID attached thereto. The node swaps the segment ID with a label. The node then forwards the packet to an LDP enabled node.

    Abstract translation: 一种用于通过包含启用标签分发协议（LDP）的节点的网络域转发分组的方法和装置，以及启用分段路由（SR）的节点。 在一个实施例中，该方法可以包括接收具有附加到其上的标签的分组的网络节点。 节点用分段标识符（ID）交换标签。 然后节点将数据包转发到SR节点。 在另一个实施例中，该方法可以包括接收具有附加到其上的段ID的分组的网络节点。 节点用标签交换分段ID。 然后节点将数据包转发到启用LDP的节点。

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